EP 1584069 B1 20120425 - VIDEO FRAME CORRELATION FOR MOTION ESTIMATION
Title (en)
VIDEO FRAME CORRELATION FOR MOTION ESTIMATION
Title (de)
VIDEOEINZELBILD KORRELATION ZUR BEWEGUNGSSCHÄTZUNG
Title (fr)
CORRELATION ENTRE TRAMES VIDEO POUR ESTIMATION MOUVEMENT VIDEO TRAME CORRELATION FOR MOTION ESTIMATION
Publication
Application
Priority
- CA 2004000093 W 20040114
- US 34584703 A 20030116
Abstract (en)
[origin: US7408989B2] A first search window within a reference frame of video data is identified along with a first correlation threshold value for the first window. The first correlation threshold value is a value to which correlation factors between a pixel set being encoded and pixels sets of the first search window are compared. For example, if a correlation factor between a specific pixel set of the first search window and a pixel set being encoded meets the first threshold value, a successful match between the two pixel sets has been found, and a corresponding motion vector can be assigned to the pixel set being encoded. If none of the pixel sets within the first window meet the first threshold value, a second search window within the first frame is selected along with a second correlation threshold value. The correlation factors for pixel sets in the second window are compared to the second correlation threshold value.
IPC 8 full level
G06T 7/20 (2006.01)
CPC (source: EP US)
G06T 7/20 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2004141556 A1 20040722; US 7408989 B2 20080805; AT E555457 T1 20120515; CN 100359535 C 20080102; CN 1739121 A 20060222; EP 1584069 A1 20051012; EP 1584069 B1 20120425; JP 2006517069 A 20060713; WO 2004063992 A1 20040729
DOCDB simple family (application)
US 34584703 A 20030116; AT 04701876 T 20040114; CA 2004000093 W 20040114; CN 200480002261 A 20040114; EP 04701876 A 20040114; JP 2006500441 A 20040114